Scroll Events

1. Events.Move — The layer is moving. 译：移动该层
2. Events.ScrollStart — Start scrolling. 译：开始滚动
3. Events.Scroll — While scrolling. 译：当滚动
4. Events.ScrollEnd — End of scroll. 译：滚动结束
5. Events.ScrollAnimationDidStart — Did start momentum/bounce animation. 译：的确开始势头/弹跳动画。
6. Events.ScrollAnimationDidEnd — Did end momentum/bounce animation. 译：真的结束势头/弹跳动画。

scroll = new ScrollComponent
layerA = new Layer
    parent: scroll.content

# Returns the event, layer.draggable and the layer 
scroll.on Events.ScrollStart, (event, draggable, layer) ->
    print event, draggable, layer

Scroll Event Shortcuts
译：滚动事件当快捷键

# For Events.Move 
scroll.onMove ->
    print "Moving"

# For Events.ScrollStart 
scroll.onScrollStart ->
    print "Start of scroll"

# For Events.Scroll     
scroll.onScroll ->
    print "Scrolling"

# For Events.ScrollEnd     
scroll.onScrollEnd ->
    print "End of scroll"

# For Events.ScrollAnimationDidStart     
scroll.onScrollAnimationDidStart ->
    print "Start of scroll animation"

# For Events.ScrollAnimationDidEnd     
scroll.onScrollAnimationDidEnd ->
    print "End of scroll animation"